South Dennis Flag

South Dennis

County Seat:
No
Area (mi²):
4.55
State:
Massachusetts

South Dennis is a CDP located in Barnstable County, Massachusetts. South Dennis has a 2026 population of 3,085. South Dennis is currently declining at a rate of -1.12% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.

The median household income in South Dennis is $88,411 with a poverty rate of 3%. The median age in South Dennis is 57.6 years: 54.7 years for males, and 61.7 years for females. For every 100 females there are 110.0 males.

3.1K
Total Population
678
Density (mi²)
-35 -1.12%
Growth

South Dennis Population

South Dennis Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20263,085-35-1.12%
20253,120-35-1.11%

Median Age

Overall: 57.6 years
Female: 61.7 years
Male: 54.7 years

South Dennis Adults

There are 2,808 adults, (1,122 of whom are seniors) in South Dennis.

Sex Ratio

Female: 1,493 (47.6%)
Male: 1,642 (52.4%)

Demographics

The racial composition of South Dennis includes 91.36% White, 4.72% Black or African American, and smaller percentages for other race, Asian, Two or more races and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White2,86491.36%
Black or African American1484.72%
Other race932.97%
Asian170.54%
Two or more races130.41%
Race
Population ↓
Percentage (of total)
Two or more races130.41%
Race
Population ↓
Percentage (of total)
White2,86491.36%
Black or African American1484.72%
Other race932.97%
Asian170.54%

South Dennis Marital Status

Economics and Income Statistics

South Dennis ' average per capita income is $53,285. Household income levels show a median of $88,411. The poverty rate stands at 3%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median ↓
Mean
Married Families$123,021-
Families$104,514$120,023
Households$88,411$99,225
Non Families$64,773$67,704

$53,285

Average Income

$88,411

Median Household Income

3%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)